CN2630565Y - Vibration isolator for airborne electronic equipment - Google Patents
Vibration isolator for airborne electronic equipment Download PDFInfo
- Publication number
- CN2630565Y CN2630565Y CN 03221921 CN03221921U CN2630565Y CN 2630565 Y CN2630565 Y CN 2630565Y CN 03221921 CN03221921 CN 03221921 CN 03221921 U CN03221921 U CN 03221921U CN 2630565 Y CN2630565 Y CN 2630565Y
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- shell
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- lower spring
- slide plate
- electronic equipment
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Abstract
A vibration isolator for airborne electronic equipment is an electronic equipment vibration isolation and buffering device, specially is a safety vibration isolation protective device that is applicable to aircraft electronic equipment, the cylindrical shell 3 of the vibration isolator is provided with a hole, a connecting joint 1 enters into the hole, and the connecting joint 1 in the shell is provided with a friction disk 4, an upper spring seat 5,an upper spring and an upper sliding vane 7 from up to down, an inner cone hole retractable ring 8 is arranged under the upper sliding vane, an outer cone ring 9 is provided under the inner cone hole retractable ring, and the inner cone hole retractable ring is matched with the two conical surfaces of the outer cone ring, a lower sliding disk 13 is arranged under the outer cone ring, the thread part of the screw 12 is spun in the connecting joint, the upper sliding disk, the inner cone hole retractable ring, the outer cone ring and the lower sliding disk are arranged under the connecting joint, a lower spring seat 12 is arranged at the opening of the shell, a lower spring 11 is arranged between the lower spring seat and the lower sliding disk, a bottom plate 1 and the shell are fixed by a hollow rivet B1. The utility model has the advantages of stable support, good coaxiality, capable of realizing increasing displacement among three axes, damping automatically increasing with following.
Description
One, technical field
The utility model is a kind of device of electronic equipment anti-vibration and shock, and especially a kind of device that is applicable to air electronics safety vibration isolation protection belongs to the technical field that vibration damper is made.
Two, background technique
Aircraft proposes following specific (special) requirements to Vibration Isolator Using For Airborne Electronic Equipment when doing the emission of ultrasound velocity maneuvering flight and weapon:
1, can shake at big centrifugal acceleration, sinusoidal vibration, stochastic vibration, sound, mechanical environment conditions such as big gun shakes, impact
Guarantee that the electronic equipment telecommunications functions normally brings into play down;
2, must be at spatial triaxial to all having carrying, vibration isolation, buffer capacity;
3, forced landing or bob must born under large impact and the acceleration situation when hitting, and guarantee that electronic equipment is under effective supporting of vibrating isolation system;
More than require all harsher than ground installation, on-board equipment and other type equipment.
Reference technique of the present invention is that 27 fighter plane electronic equipments are revived with А П Н-3 type vibration isolator by the former Soviet Union, it by connecting head, shell, upper spring, go up slide plate, split ring, folding ring, slide plate, lower spring, screw, Stainless Steel Wire gauze pad, spacer ring, base plate and tubular-shank rivet are formed down.Its major defect is as follows:
1. the frictional force that vertical damping characteristic produces by split ring, folding ring, with inner surface of outer cover provides, its rigidity of back is determined by steel wire diameter, external diameter, opening degree K because split ring is shaped, after the dimension D hole, center of folding ring R groove is determined, its tension force is unalterable, so vertical damping characteristic can not change as required.For example, when equipment is hit, need be along with the increase of decline displacement, the corresponding increase of frictional force is with the dissipation impact energy.And dropping in the overall process of limit position damping force from shown position, existing its folding ring of А П Н-3 type vibration isolator do not have significant change;
2. when with respect to the connecting head axis corner displacement being arranged, owing to do not have friction plate between connecting head and shell, therefore the stability of a system is relatively poor when angular acceleration impacts;
3. for weight reduction and reduced volume, the inoperative bearing ring of upper spring and lower spring and shell internal orifice dimension are generally less than 200 ° to wrapping angle, cause upper and lower spring radial support instability, connecting head is not overlapped with the main axis of shell and take place crookedly, non-linear self oscillations easily takes place during vibration.
Three, summary of the invention
1, technical problem
Goal of the invention of the present utility model is that the above-mentioned deficiency at existing А П Н-3 type vibration isolator is added on improvement, thus provide a kind of support stable, coaxality good, can realize all that at three between centers displacement increase, damping follow the Vibration Isolator Using For Airborne Electronic Equipment of increase automatically.
2, technological scheme
The utility model is a kind of Vibration Isolator Using For Airborne Electronic Equipment, is made up of vibration damping part, damping portion and shell.This vibration isolator is made up of connecting head, screw, shell, friction plate, upper spring seat, upper spring, last slide plate, internal taper hole folding ring, outer conical ring, base plate, lower spring, lower spring cup, following slide plate and tubular-shank rivet.Be provided with a hole in columniform shell upper, connecting head from outside penetrate in this hole, on the connecting head in the enclosure, be sequentially with friction plate from top to bottom, upper spring seat, upper spring, last slide plate, internal taper hole folding ring be positioned at slide plate below, outer conical ring be positioned at internal taper hole folding ring below, and internal taper hole folding ring matches with two conical surfaces of outer conical ring, following slide plate be positioned at outer conical ring below, the helical thread portion of screw is spun in the connecting head, to go up slide plate, internal taper hole folding ring, outer conical ring, following slide plate is fixed on the below of connecting head, lower spring cup is positioned at the lower opening of shell, between lower spring cup and following slide plate, be provided with lower spring, fix by tubular-shank rivet between base plate and the shell.The cone-apex angle α of outer conical ring and inner cone folding ring is 60 ℃～120 ℃, the conical surface of internal taper hole folding ring coincides with the conical surface of outer conical ring, gap between last slide plate and the outer conical ring is 0.3mm～1mm, upper spring seat and lower spring cup respectively have the flange of an archimedes curve shape, flange height equals the upper spring that is supported and the steel wire diameter of lower spring respectively, its effect is to guarantee that upper and lower spring radially effectively supports angle near 360 °, the stability of vibrating isolation system when improving the standard vibratory impulse.Between upper spring seat and shell friction plate is housed, the internal diameter and the connecting head of friction plate are slippery, and the inwall gap of its external diameter and shell is greater than the horizontal limeit displacement.Lower spring cup is made by the Stainless Steel Wire gauze pad, and its outer diameter D and internal diameter of outer cover match, and its inner diameter d should be greater than the screw head external diameter 3～5mm of screw; After its thickness should guarantee the lower spring doubling-up, the head of screw did not collide with base plate; The silk footpath of Stainless Steel Cloth is 0.15～0.35mm, and steel wire hardness should be HRC40～50 after the heat treatment.Under identical shell sizes and working depth condition, it is identical that the diameter and the pitch of change upper spring, lower spring can obtain boundary dimension, and the series product with different-stiffness damping characteristic and different bearer amount.Change the size of shell, and carry out the series product that corresponding structure design can obtain bigger carrying scope according to this Project design principle.
3, beneficial effect
1. along with the increase of vertical deviation, co-acting force strengthens between inertial force and the spring, last slide plate and following slide plate outer conical ring of extruding and internal taper hole folding ring, make frictional force increasing between internal taper hole folding ring and shell, thereby the purpose that the vertical damping force that has realized this project changes on demand, change the cone-apex angle α of outer conical ring and internal taper hole folding ring, can adjust vertical and level to the positive pressure ratio.
2. work as internal taper hole folding ring and inner surface of outer cover and wear and tear because of long-term friction, its wear extent can be mended reward voluntarily by upper and lower spring pressure.Have only when internal taper hole folding ring with outside the upper and lower surface of conical ring flush after from mending the reward disabler.The reward amount is mended in control wearing and tearing rationally can guarantee (as flying 5000～10000 hours) stable performance in actual life of the utility model vibration isolator.
3. the top of the utility model in the original structure shell has increased by a ring-shaped friction lining, and the frictional force between friction plate and housing contacts face has improved the damping force of this project substantially horizontal; Simultaneously, when the needs substantially horizontal is carried, the direction of can improving the standard vibration, impact stability.
4. in order to overcome with reference to the upper and lower bearing coil angle of product deficiency, the shortcoming that supporting is unstable, main axis does not overlap between connecting head and shell, this project has increased upper and lower spring seat.Guarantee nearly 360 ° of the radial support corner connection of upper and lower spring, connecting head is overlapped substantially with the main axis of shell, improved stability when horizontal vibration is impacted and the bearing capacity of substantially horizontal.
Four, description of drawings
Fig. 1 is a general structure schematic representation of the present utility model.Wherein have: (1), screw (2), shell (3), friction plate (4), upper spring seat (5), upper spring (6), last slide plate (7), internal taper hole folding ring (8), outer conical ring (9), base plate (10), lower spring (11), lower spring cup (12), following slide plate (13), tubular-shank rivet (B
1).
Fig. 2 is the plan view of Fig. 1.
Fig. 3 is the sectional view of A-A among Fig. 1.
Fig. 4 is the structural representation of internal taper hole folding ring 8.
Fig. 5 is the sectional view of the A-A of Fig. 4, and cone-apex angle α is wherein arranged.
Fig. 6 is the structural representation of outer conical ring 9.
Fig. 7 be Fig. 6 sectional view.
Fig. 8 is the structural representation of upper spring seat 5.Fig. 8 a is the left view of upper spring seat 5.
Fig. 9 is the structural representation of lower spring cup 12.Fig. 9 a is the left view of lower spring cup 12.
Figure 10 is the composite rigidity plotted curve.
Five, embodiment
The utility model is a kind of Vibration Isolator Using For Airborne Electronic Equipment, is made up of vibration damping part, damping portion and shell.This vibration isolator is by connecting head 1, screw 2, shell 3, friction plate 4, upper spring seat 5, upper spring 6, last slide plate 7, internal taper hole folding ring 8, outer conical ring 9, base plate 10, lower spring 11, lower spring cup 12, following slide plate 13 and tubular-shank rivet B
1Form.Be provided with a hole on columniform shell 3 tops, connecting head 1 from outside penetrate in this hole, on the connecting head 1 in shell 3, be sequentially with friction plate 4 from top to bottom, upper spring seat 5, upper spring 6, last slide plate 7, internal taper hole folding ring 8 be positioned at slide plate 7 below, outer conical ring 9 be positioned at internal taper hole folding ring 8 below, and internal taper hole folding ring 8 matches with two conical surfaces of outer conical ring 9, following slide plate 13 be positioned at outer conical ring 9 below, the helical thread portion of screw 2 is spun in the connecting head 1, to go up slide plate 7, internal taper hole folding ring 8, outer conical ring 9, following slide plate 13 is fixed on the below of connecting head 1, lower spring cup 12 is positioned at the lower opening of shell 3, between lower spring cup 12 and following slide plate 13, be provided with lower spring 11, fix by tubular-shank rivet B1 between base plate 10 and the shell 3.Outer conical ring 9 is 60 ℃～120 ℃ with the cone-apex angle α of inner cone folding ring 8, and the conical surface of internal taper hole folding ring 8 coincides with the conical surface of outer conical ring 9, and the gap between last slide plate 7 and the outer conical ring 9 is 0.3mm～1mm.Upper spring seat 5 and lower spring cup 12 respectively have the flange h of an archimedes curve shape, flange h equals the upper spring 6 that is supported and the steel wire diameter of lower spring 11 highly respectively, its effect is to guarantee that upper and lower spring radially effectively supports angle near 360 °, the stability of vibrating isolation system when improving the standard vibratory impulse.Between upper spring seat 5 and shell 3, friction plate 4 is housed.The internal diameter of friction plate 4 and connecting head 1 are slippery; Its external diameter should be than the big 1～2mm of horizontal limeit displacement with the inwall gap of shell 3.Lower spring cup 12 is made by the Stainless Steel Wire gauze pad, and its outer diameter D and shell 3 internal diameters match, and its inner diameter d should be greater than the screw head external diameter 3～5mm of screw 2; After its thickness should guarantee lower spring 11 doubling-up, the head of screw 2 did not collide with base plate 10.The silk footpath of Stainless Steel Cloth is 0.15～0.35mm, and steel wire hardness should be HRC40～50 after the heat treatment.Under identical shell sizes and working depth condition, it is identical that the diameter and the pitch of change upper spring 6, lower spring 11 can obtain boundary dimension, and the series product with different-stiffness damping characteristic and different bearer amount.Change the size of shell 3, and carry out the series product that corresponding structure design can obtain bigger carrying scope according to this Project design principle.
The manufacture process of model utility is
1, the structure of Vibration Isolator Using For Airborne Electronic Equipment described in the utility model is formed shown in figure (1).
2, member assembly relation of the present utility model
(1) friction plate 4, upper spring seat 5, upper spring 6, last slide plate 7 are inserted in connecting head 1 successively, and will go up slide plate 7 and rivet into assembly with connecting head 1 lower end;
(2) said modules is inserted in shell 3 after, with wait the internal taper hole folding ring 8 cut into three, outer conical ring 9, slide plate 13 is packed in the shell 3 down, and splash into locking thread glue behind the screw head of screw 2 in the screw-in connecting head 1;
(3) lower spring 11 and lower spring cup 12 are put into shell 3 successively, cover base plate 10, and with four tubular-shank rivet B
1Shell 3 is riveted into the utility model vibration isolator with base plate 10;
(4) the utility model vibration isolator is connected with air environment with the internal thread of connecting head 1;
(5) the utility model vibration isolator endoporus of adopting four screws to pass tubular-shank rivet respectively is connected with installation base surface.
Claims (6)
1, a kind of Vibration Isolator Using For Airborne Electronic Equipment, by the vibration damping part, damping portion and shell are formed, it is characterized in that this vibration isolator is by connecting head (1), screw (2), shell (3), friction plate (4), upper spring seat (5), upper spring (6), last slide plate (7), internal taper hole folding ring (8), outer conical ring (9), base plate (10), lower spring (11), lower spring cup (12), following slide plate (13) is formed, be provided with a hole on columniform shell (3) top, connecting head (1) from outside penetrate in this hole, on the connecting head (1) in shell (3), be sequentially with friction plate (4) from top to bottom, upper spring seat (5), upper spring (6), last slide plate (7), internal taper hole folding ring (8) be positioned at slide plate (7) below, outer conical ring (9) be positioned at internal taper hole folding ring (8) below, and internal taper hole folding ring (8) matches with two conical surfaces of outer conical ring (9), following slide plate (13) be positioned at outer conical ring (9) below, the helical thread portion of screw (2) is spun in the connecting head (1), to go up slide plate (7), internal taper hole folding ring (8), outer conical ring (9), following slide plate (13) is fixed on the below of connecting head (1), lower spring cup (12) is positioned at the lower opening of shell (3), between lower spring cup (12) and following slide plate (13), be provided with lower spring (11), between base plate (10) and the shell (3) by tubular-shank rivet (B
1) fix.
2, Vibration Isolator Using For Airborne Electronic Equipment according to claim 1, it is characterized in that the outer conical ring (9) and the cone-apex angle α of inner cone folding ring (8) are 60 ℃～120 ℃, the conical surface of internal taper hole folding ring (8) coincides with the conical surface of outer conical ring (9), and the gap between last slide plate (7) and the outer conical ring (9) is 0.3mm～1mm.
3, Vibration Isolator Using For Airborne Electronic Equipment according to claim 1, it is characterized in that upper spring seat (5) and lower spring cup (12) respectively have the flange (h) of an archimedes curve shape, flange (h) equals the upper spring (6) that is supported and the steel wire diameter of lower spring (11) highly respectively.
4, Vibration Isolator Using For Airborne Electronic Equipment according to claim 1 is characterized in that between upper spring seat (5) and shell (3) friction plate (4) being housed, and the internal diameter of friction plate (4) and connecting head (1) are slippery; The inwall gap of its external diameter and shell (3) should be than the big 1～2mm of horizontal limeit displacement.
5, Vibration Isolator Using For Airborne Electronic Equipment according to claim 1 is characterized in that lower spring cup (12) made by the Stainless Steel Wire gauze pad, and its outer diameter D and shell (3) internal diameter matches, and its inner diameter d should be greater than the screw head external diameter 3～5mm of screw (2); After its thickness should guarantee lower spring (11) doubling-up, the head of screw (2) did not collide with base plate (10).
6, Vibration Isolator Using For Airborne Electronic Equipment according to claim 5 is characterized in that the silk footpath of Stainless Steel Cloth is 0.15～0.35mm, and steel wire hardness should be HRC40～50 after the heat treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03221921 CN2630565Y (en) | 2003-05-16 | 2003-05-16 | Vibration isolator for airborne electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03221921 CN2630565Y (en) | 2003-05-16 | 2003-05-16 | Vibration isolator for airborne electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2630565Y true CN2630565Y (en) | 2004-08-04 |
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ID=34290474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03221921 Expired - Lifetime CN2630565Y (en) | 2003-05-16 | 2003-05-16 | Vibration isolator for airborne electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2630565Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102431656A (en) * | 2011-09-01 | 2012-05-02 | 中国航空工业第六一八研究所 | Locking device for fastening inertial navigation system and mounting bracket |
| CN103148143A (en) * | 2013-03-15 | 2013-06-12 | 南京捷诺环境技术有限公司 | Variable damping and variable rigidity bottom vibration isolator |
| CN103161864A (en) * | 2013-03-15 | 2013-06-19 | 重庆大学 | Three-directional friction adjustable strong-impact-resisting vibration isolator |
| CN103192986A (en) * | 2012-01-10 | 2013-07-10 | 贝尔直升机泰克斯特龙公司 | Rotorcraft vibration suppression system in a four corner pylon mount configuration |
| CN103213686A (en) * | 2013-04-24 | 2013-07-24 | 哈尔滨飞机工业集团有限责任公司 | Helicopter airborne device suspending structure |
| CN103267078A (en) * | 2013-06-06 | 2013-08-28 | 南京捷诺环境技术有限公司 | Composite spring damping adjustable vibration isolator |
| CN103335048A (en) * | 2013-06-06 | 2013-10-02 | 南京捷诺环境技术有限公司 | Damping adjustable vibration isolator with combined springs |
| CN103836109A (en) * | 2014-02-25 | 2014-06-04 | 南京捷诺环境技术有限公司 | Low-coupling wall mounted vibration isolator and vibration isolator group |
| CN107949722A (en) * | 2015-08-07 | 2018-04-20 | 莫戈公司 | Payload portion shock and vibration isolator |
-
2003
- 2003-05-16 CN CN 03221921 patent/CN2630565Y/en not_active Expired - Lifetime
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102431656B (en) * | 2011-09-01 | 2014-03-12 | 中国航空工业第六一八研究所 | Locking device for fastening inertial navigation system and mounting bracket |
| CN102431656A (en) * | 2011-09-01 | 2012-05-02 | 中国航空工业第六一八研究所 | Locking device for fastening inertial navigation system and mounting bracket |
| CN103192986A (en) * | 2012-01-10 | 2013-07-10 | 贝尔直升机泰克斯特龙公司 | Rotorcraft vibration suppression system in a four corner pylon mount configuration |
| CN103192986B (en) * | 2012-01-10 | 2015-07-15 | 贝尔直升机泰克斯特龙公司 | Rotorcraft vibration suppression system in a four corner pylon mount configuration |
| CN103148143A (en) * | 2013-03-15 | 2013-06-12 | 南京捷诺环境技术有限公司 | Variable damping and variable rigidity bottom vibration isolator |
| CN103161864A (en) * | 2013-03-15 | 2013-06-19 | 重庆大学 | Three-directional friction adjustable strong-impact-resisting vibration isolator |
| CN103161864B (en) * | 2013-03-15 | 2015-07-15 | 重庆大学 | Three-directional friction adjustable strong-impact-resisting vibration isolator |
| CN103213686B (en) * | 2013-04-24 | 2015-07-01 | 哈尔滨飞机工业集团有限责任公司 | Helicopter airborne device suspending structure |
| CN103213686A (en) * | 2013-04-24 | 2013-07-24 | 哈尔滨飞机工业集团有限责任公司 | Helicopter airborne device suspending structure |
| CN103335048A (en) * | 2013-06-06 | 2013-10-02 | 南京捷诺环境技术有限公司 | Damping adjustable vibration isolator with combined springs |
| CN103267078A (en) * | 2013-06-06 | 2013-08-28 | 南京捷诺环境技术有限公司 | Composite spring damping adjustable vibration isolator |
| CN103836109A (en) * | 2014-02-25 | 2014-06-04 | 南京捷诺环境技术有限公司 | Low-coupling wall mounted vibration isolator and vibration isolator group |
| CN103836109B (en) * | 2014-02-25 | 2016-04-06 | 南京捷诺环境技术有限公司 | A kind of hanging vibration isolator of low coupled wall and vibration isolator group |
| CN107949722A (en) * | 2015-08-07 | 2018-04-20 | 莫戈公司 | Payload portion shock and vibration isolator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Nanjing Jienuo Environment Technology Co., Ltd. Assignor: Ji Xin Contract fulfillment period: 2007.1.5 to 2013.5.16 Contract record no.: 2008320000370 Denomination of utility model: Vibration isolator for airborne electronic equipment Granted publication date: 20040804 License type: Exclusive license Record date: 20080925 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENCE; TIME LIMIT OF IMPLEMENTING CONTACT: 2007.1.5 TO 2013.5.16 Name of requester: NANJING JIENUO ENVIRONMENT TECHNOLOGY CO., LTD. Effective date: 20080925 |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20130516 Granted publication date: 20040804 |